PstrongCompany Description /strong /ppAtomic Spain is the European tech and data hub of strongAtomic Growth /strong, a global AI-driven e-commerce and SaaS platform automating Amazon store management at scale. Our team builds autonomous agents that optimize pricing, advertising, inventory, and operations - powered by real-time data from hundreds of active storefronts. /ppbr/ppstrongRole Description /strong /ppbr/ppWe are looking for a meticulous QA Engineer based in Malaga, Spain to join our distributed engineering team. You will play a critical role in ensuring that when our customers look at their profit margins or ad spend, the numbers are 100% accurate, when an ai agent issues a recommendation it's valid based on its available data. /ppbr/ppYou won’t just be testing if a button works, you will be testing business logic. You will verify that our data pipelines, financial calculations, and ad-attribution models are correct. You will work closely with Product Managers and Developers to ensure our analytics dashboards are reliable and fast. /ppbr/ppstrongKey responsibilities /strong /ppbr/pullistrongTest Planning Execution: /strong Design, implement, and execute test plans for our web application, focusing on Data Integrity, Model predictions, Agent recommendations etc… /li /ulpbr/pullistrongData Validation: /strong Compare our data with external sources (Seller platforms, 3rd party SaaS etc…) making sure it is coherent /li /ulpbr/pullistrongLogic Verification: /strong Manually and automatically test complex mathematical formulas (e.g., Gross Profit, ROAS, TACoS) to ensure accurate PL reporting. /li /ulpbr/pullistrongAutomation: /strong Contribute to our automated testing framework (Github Actions/Playwright/Selenium) to cover critical regression paths. /li /ulpbr/pullistrongBug Hunting: /strong Identify, record, and track bugs using Jira. Prioritize issues based on impact on financial accuracy and user experience. /li /ulpbr/pullistrongCross-Functional Work: /strong Collaborate with an international team of developers to reproduce issues related to time zones, currency conversions, and large datasets. /li /ulpbr/ppstrongRequirements /strong /ppbr/pullistrongExperience: /strong 3+ years of experience in Software Quality Assurance (Web SaaS). /li /ulpbr/pullistrongData Proficiency: /strong Strong knowledge of strongSQL /strong. You must be comfortable querying databases to validate test results (e.g., checking if the emProfit /em calculation matches the emRevenue minus Expenses /em in the DB). /li /ulpbr/pullistrongTechnical Stack: /strong Experience with API testing (Postman, REST) and familiarity with CI/CD pipelines (Jenkins, GitHub Actions). /li /ulpbr/pullistrongAutomation Basics: /strong Experience writing or maintaining automated scripts (JavaScript/TypeScript or Python preferred). /li /ulpbr/pullistrongLanguage: /strong Fluent in strongEnglish /strong. We are an international company, and all documentation/meetings are in English. /li /ulpbr/pullistrongMindset: /strong Extreme attention to detail. A rounding error in our software costs our clients money. /li /ulpbr/ppstrongNice to have /strong /ppbr/pullistrongDomain Knowledge: /strong Experience working with strongAmazon Seller Central /strong, strongAmazon SP-API /strong, or generally in the E-commerce/AdTech space. /li /ulpbr/pullistrongFinancial/Ad Experience: /strong Understanding of concepts like PPC, CPC, ACOS, VAT, and COGS (Cost of Goods Sold). /li /ulpbr/pullistrongMath/Stats Background: /strong A degree or background in mathematics, statistics, or finance is a huge plus. /li /ul